A particular manufacturing design requires a shaft with a diameter of 20.000 mm, but shafts with diameters between 19.987 mm and 20.013 mm are acceptable. The manufacturing process yields shafts with diameters normally distributed, with a mean of 20.003 mm and a standard deviation of 0.005 mm. Complete parts (a) through (d) below. a. For this process, what is the proportion of shafts with a diameter between 19.987 mm and 20.000 mm?

Answer:

2x

Step-by-step explanation:

Hello :)

We are given two polynomials and are asked to subtract and simplify them. We can start this by distributing the 2 to x-3, then using that answer to subtract that from 4x-6.

2(x-3)  The distribution property is key here. Imagine you have to distribute the number two to both x and 3, because they're greedy and don't want to share. Distributing means you multiply 2 by both x and 3.

2x-6

Now that we know the polynomial for the first, we can perform subtraction.

(4x-6)-(2x-6)   We actually have to distribute the negative on the second polynomial to get rid of the parenthesis.

4x-6-2x+6    (note the sign turned positive since negative sign times a negative sign is a positive sign)

Let's simplify now. Combine like terms.

2x should be your final answer.

2/3 + 1/4 = 11/12

Fractions are very important in many areas such as math, physics, engineering, chemistry and many more, understanding how to add fractions with unlike denominators is a fundamental skill that will help you in many aspects of your life.

Adding fractions with unlike denominators can be a bit tricky, but with the right understanding and techniques, it's definitely doable.

When we add fractions with unlike denominators, we need to first find a common denominator. A common denominator is a number that is a multiple of both denominators. Once we have a common denominator, we can add the fractions as usual by adding the numerators and keeping the denominator the same.

Here are a few examples of adding fractions with unlike denominators:

2/3 + 1/4

We can find a common denominator by finding the least common multiple (LCM) of 3 and 4. The LCM of 3 and 4 is 12.

So, we can convert 2/3 to 8/12 by multiplying the numerator and denominator by 4.

We can convert 1/4 to 3/12 by multiplying the numerator and denominator by 3.

Now we can add the fractions by adding the numerators: 8/12 + 3/12 =

1/5 + 2/7

We can find a common denominator by finding the least common multiple (LCM) of 5 and 7. The LCM of 5 and 7 is 35.

So, we can convert 1/5 to 7/35 by multiplying the numerator and denominator by 7.

We can convert 2/7 to 10/35 by multiplying the numerator and denominator by 5.

So, we can convert 3/4 to 9/12 by multiplying the numerator and denominator by 3.

We can convert 1/3 to 4/12 by multiplying the numerator and denominator by 4.

Now we can add the fractions by adding the numerators: 9/12 + 4/12 = 13/12

So, 3/4 + 1/3 = 13/12

It's important to note that when adding fractions, it's also important to simplify the final result if possible.

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Answer:

455 miles

I divided 845 by 13 and multiplied my answer by 7 to get 455.

Answer:

n=-15/2

EX:

3\cdot \frac{2}{3}n=3\left(-5\right)

2n=-15

\frac{2n}{2}=\frac{-15}{2}

n=-\frac{15}{2}

Answer:

n=-15/2

Step-by-step explanation:

AB is congruent to CD.AB = CD =\(\sqrt{14} units\) (proved)

In coordinate geometry, we use the distance formula to find the distance between two coordinates in a straight line. It represented D.

Let's consider two points on a coordinate plane given as A and B (x₂, y₂).

D = \(\sqrt{(x2 -x 1)^2 + (y2 - y1)^2}\)

Given:

The coordinates of the given quadrilateral are,

A(1, 5), B(6, 1), C(−2, 8), D(−6, 3).

According to the question we need to determine AB = CD.

By using the distance formula of coordinate geometry.

\(\sqrt{(x2 -x 1)^2 + (y2 - y1)^2}\)

Distance between A and B,

\(AB =\sqrt{(6 - 1)^2 + (5-1)^2 } \\AB = \sqrt{5^2 + 4^2} \\AB = \sqrt{25 + 16} \\AB = \sqrt{41} units\)        .......(1)

Distance between C and D,

\(CD =\sqrt{(-6 -(-2))^2 + (3-8)^2 } \\CD = \sqrt{(-4)^2 + (-5)^2} \\CD = \sqrt{16 + 25} \\CD = \sqrt{41} units\).......(2)

From equation (1) and (2) we find that

AB = CD =\(\sqrt{14} units\)

Hence, AB is congruent to CD.AB = CD =\(\sqrt{14} units\) (proved).

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The slope of the data given in the table is -1.

To find the slope indicated in the given table, we will use the formula for calculating the slope, which is:

Slope = (change in y) / (change in x)

First, let's find the change in y and the change in x by selecting two points from the table. We can choose points (8, 2) and (6, 4).

Change in y = y2 - y1 = 4 - 2 = 2

Change in x = x2 - x1 = 6 - 8 = -2

Now, apply the slope formula:

Slope = (change in y) / (change in x) = 2 / (-2) = -1

Therefore, slope of the data indicated in the table is -1.

Note: The question is incomplete. The complete question probably is: What is the slope indicated in the table below?

X: 8 6 4 2

Y: 2 4 6 8

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Answer:

50

Step-by-step explanation:

if im thinking right

im SOO sorrYYy if its wrong

9514 1404 393

Answer:

  h = 3V/A

Step-by-step explanation:

Multiply by h to get it out of the denominator.

  Ah = 3V

Divide by the coefficient of h to get it by itself.

  h = 3V/A

_____

Whatever you do to one side of the equation must also be done to the other side. When we say "multiply by h", you should understand that to mean "multiply both sides of the equation by h."

This rule, "do the same thing to both sides of the equation," is the property of equality that makes Algebra work.

12 x 5 = 60

3 x 4 = 12

60 x 12 = 720

720 = Area

in 1998, the university of Wisconsin collected data on means of transportation to work. in 2008, Betsy (a university of Minnesota student) used the data for her own project. betsy is using Secondary analysis collection method.

Secondary data is information gathered by someone other than the original user. It signifies that the data is already accessible and has been analyzed. Magazines, newspapers, books, and journals are examples of secondary data. It might be published or unpublished data.

Secondary analysis is the use of existing data acquired for the purposes of a previous study to pursue a research interest that is unique from the original work; this might be a new research topic or an alternate viewpoint on the original subject.

Secondary research methods commonly used include data acquisition via the internet, libraries, archives, schools, and organizational reports.

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Answer:

24.5

Step-by-step explanation:

please give me brainliest

The value of the expression (f(g(4)) is 1.

To find the value of f(g(4)), we need to first find g(4), which is 2 (since g(4) = 2). Then, we need to find f(2), which is also 1 (since f(2) = 1). Therefore, f(g(4)) = 1.

Here's a step-by-step process for finding this:

Find g(4), Look for the row where x = 4 in the table for g(x). This is the fourth row, and the value in the g(x) column for this row is 2. So g(4) = 2.

Find f(g(4)), Now that we know g(4) = 2, we can look for the row where x = 2 in the table for f(x). This is the second row, and the value in the f(x) column for this row is 1. So f(2) = 1.

Write the final answer, Since f(g(4)) = f(2) = 1, we can say that the value of the expression is 1.

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Answer:

14

Step-by-step explanation:

21-3^2+2      

3 to the second power is 9

then,  21 - 9 + 2

left to right.....

21 - 9 = 12

12+2=14

Step-by-step explanation:

f(x) = x³ = 2³ = is 8

hope it's helpful

Answer:

hope this helps

2x-4

Step-by-step explanation:

Answer:

The product of 16 and 26 would be 16 * 26

Step-by-step explanation:

This is because "the product of" means multiplication so *. Making it 16 * 26.

Answer:

1) 27/2 2) 8pi 3) 48 4) 16+2pi

Step-by-step explanation:

1) The length of the triangle is 9 (found by finding the distance between (-5,-3) and (4,-3)) and the height is 3 (found by finding the distance between (1,0) and (1,-3)). The area of a triangle is 1/2 (length times height) which in this case is 27/2.

2) The shape is a semicircle, so the area is 1/2 pi*r^2.

1/2 * pi * r^2=8pi

3) B*H=8*6=48

4) The figure is a semicircle and a square.

The area of the semicircle is 1/2 * pi * r^2=2pi

The area of the square is b*h=4*4=16

The area is 16+2pi.

The fraction 13 3/10 - 10 5/6 is simplified to 2 14/30

A fraction can be defined as the part of a whole element, number or value.

There are several types of fractions, which includes;

From the information given, we have that;

13 3/10 - 10 5/6

convert the mixed fraction to improper fraction, we have;

133/10 - 65/6

Find the lowest common multiple

399- 325/30

Subtract the numerators

74/30

Divide the values, we have;

2 14/30

Hence, the value is 2 14/30

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Whether to take a census or use sampling to collect data for the study on the average credit card debt of the 40 employees of a company depends on various factors, including the resources available, time constraints, and the level of accuracy required.

A census involves gathering information from every individual or element in the population. In this case, if it is feasible and practical to collect credit card debt data from all 40 employees of the company, then a census could be conducted. This would provide the exact average credit card debt of all employees without any estimation or uncertainty.

However, conducting a census can be time-consuming, costly, and may not always be feasible, especially when dealing with large populations or limited resources. In such cases, sampling can be used to collect data from a subset of the population, which can still provide reliable estimates of the average credit card debt.

If the goal is to estimate the average credit card debt of all employees with a certain level of confidence, a random sampling approach can be employed. A representative sample of employees can be selected from the company, and their credit card debt data can be collected. Statistical techniques can then be used to analyze the sample data and infer the average credit card debt of the entire employee population.

Ultimately, the decision to take a census or use sampling depends on practical considerations and the specific requirements of the study. If it is feasible and necessary to collect data from every employee, a census can be conducted. However, if a representative estimate is sufficient and resource limitations exist, sampling can be a viable alternative.

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Answer:

11/14

Step-by-step explanation:

change the 1 1/7 numerator into an improper fraction as 8/7

the common denominator of 7 and 4 is 28 for the numerator

this would leave you with 32/28-21/28

change the denominator 2 1/2 to 5/2

5/2 x 1/5 you multiply top and bottom to get 5/10=1/2

this would leave you with 11/28 / 1/2

when you divide fractions you change the divide to multiply by the reciprocal

11/28 x 2/1 = 22/28

22/28 = 11/14

The angle between the stick and the base of the box is 77. 9 degrees

To determine the angle between the stick and the base, we have to know the trigonometric identities.

These identities are;

From the information given, we have;

sin A = FB/AB

Given that;

GB = 14.5cm

AB = 18. 6cm

substitute for the length of the sides, we have;

sin A = 14.5/18. 6

Divide the values, we have;

sin A = 0. 7796

Find the inverse sine

A = 77. 9 degrees

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Answer:

Chart:

x           y

-6         11

3           5

15         -3

-12        15

Step-by-step explanation:

The only things you can plug in are the domain {-12, -6, 3, 15}

Plug in the domain into equation to find y.

-6 :

y = -2/3 (-6) +7

y = +47

y=11

(-6,11)

3:

y = -2/3 (3) +7

y = -2 +7

y = 5

(3, 5)

15:

y = -2/3 (15) +7

y =  -10 +7

y = -3

(15 , -3)

-12:

y = -2/3 (-12) +7

y = 8 + 7

y= 15

(-12,15)

Answer:

1) 11

2) 3

3) -3

4) -12

Step-by-step explanation:

eq(1):

\(y = \frac{-2}{3} x + 7\\\\y - 7 = \frac{-2}{3} x\\\\x = (y - 7)\frac{-3}{2} \\\\x = (7-y)\frac{3}{2} ---eq(2)\)

1) x = -6

sub in eq(1)

\(y = \frac{-2}{3} (-6) + 7\\\\y = \frac{12}{3} + 7\\\\y = 4+7\\\\y = 11\)

2) y = 5

sub in eq(2)

\(x = (7-5)\frac{3}{2} \\\\x = 3\)

3) x = 15

sub in eq(1)

\(y = \frac{-2}{3} 15 + 7\\\\y = \frac{-30}{3} +7\\\\y = -10 + 7\\\\y = -3\)

4)

sub in eq(2)

\(x = (7-15)\frac{3}{2} \\\\x = -8\frac{3}{2}\\ \\x = -12\)

Since none of the 13 classmates had been given math homework between the original survey and Kelly's second survey, the sum of the values in the second data set is the same as the sum of the values in the original data set. Therefore, the change in the means can be determined without calculating the mean of either data set by considering the number of data points in each set.

Since both data sets have the same number of data points, the change in the means will be zero. This is because the mean is calculated by dividing the sum of the values by the number of data points, and since the sum of the values is the same in both data sets, the means will also be the same.

In other words, the change in the mean is calculated as follows:

Change in mean = Mean of second data set - Mean of first data set

Since none of the values in the second data set have changed, the mean of the second data set is the same as the mean of the first data set. Therefore, the change in the mean is:

Change in mean = Mean of second data set - Mean of first data set

= Mean of first data set - Mean of first data set

= 0

Thus, the change in the means between Kelly's original survey and her second survey is zero.

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To answer the questions related to the probability of droplet sizes, we'll use the normal distribution with the given mean and variance. Let's solve each part of the question:

a. Probability that the size of a single droplet is less than 1500 μm:

To find this probability, we need to calculate the cumulative distribution function (CDF) of the normal distribution up to 1500 μm. We'll use the z-score formula:

z = (x - μ) / σ

Where:

x = droplet size (1500 μm)

μ = mean (1050 μm)

σ = standard deviation (square root of the variance, which is sqrt(22500 μm))

Calculating the z-score:

z = (1500 - 1050) / sqrt(22500)

= 450 / 150

= 3

Using the z-score table or a calculator, we can find that the cumulative probability corresponding to z = 3 is approximately 0.9987.

Therefore, the probability that the size of a single droplet is less than 1500 μm is approximately 0.9987.

b. Probability that the size of a single droplet is between 1000 and 1500 μm:

Similar to part (a), we need to calculate the cumulative probability for two values: 1000 μm and 1500 μm. Let's calculate the z-scores for both values:

For 1000 μm:

z_1000 = (1000 - 1050) / sqrt(22500)

For 1500 μm:

z_1500 = (1500 - 1050) / sqrt(22500)

Once we have the z-scores, we can find the corresponding cumulative probabilities using the z-score table or a calculator. Then, we subtract the probability for 1000 μm from the probability for 1500 μm to find the probability between the two values.

c. Characterizing the smallest 2% of all droplets:

To characterize the smallest 2% of droplets, we need to find the droplet size that corresponds to the 2nd percentile of the normal distribution. In other words, we need to find the value x such that the cumulative probability up to x is 0.02. We can use the z-score formula to solve for x:

z = (x - μ) / σ

We'll find the z-score corresponding to the cumulative probability 0.02 using the z-score table or a calculator. Then, we can rearrange the formula to solve for x:

x = z * σ + μ

d. Probability that at least one of five independently selected droplets exceeds 1500 μm:

To find this probability, we'll use the complement rule. The probability that none of the five droplets exceed 1500 μm is the complement of the probability that at least one of them exceeds 1500 μm. We can calculate this probability by subtracting the probability of none from 1. We'll use the probability obtained in part (a) for a single droplet.

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Answer:

That should equal 725.3125.

Answer:

c just did it

Step-by-step explanation:

Area (ABC) is measured as Area (PQR), which equals 16:25.

To locate,

Area (ABC) is measured as: (PQR).

Solution,

This mathematical issue can easily resolved by utilising the procedure outlined below:

According to the "Area of Similar Triangles Theorem" in mathematics,

When two triangles are similar, their area ratios are proportional to the square of the ratio of the respective sides.

{Statement-1}

In light of the query and assertion 1, we can state,

Area (ABC) is measured as: (PQR)

= (AB: PQ), (BC: QR), and (AC: PR)

= (4:5)2 = (4/5)2

= 16/25 = 16:25

As a result, Area (ABC): Area (PQR) is measured at 16:25.

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Answer:

The answer is 35

Step-by-step explanation:

70 divided by 2 is 35 which would be 35 miles per hour which would be your unit rate.

Answer:

x = 32/3

Step-by-step explanation:

Step 1: Write equation

x/6 = 16/9

Step 2: Solve for x

The volume of the resulting solid, after drilling a round hole of radius 5 through the center of a ball with a radius of 10, is 5243.7 cubic units.

To find the volume of the resulting solid, we can subtract the volume of the drilled hole from the volume of the original ball. The volume of a sphere is given by the formula V = (4/3)πr^3, where r is the radius.

The volume of the original ball can be calculated as:

V_original = (4/3)π(10^3) = 4188.8 cubic units.

The volume of the drilled hole can be calculated as:

V_hole = (4/3)π(5^3) = 523.6 cubic units.

Subtracting the volume of the hole from the volume of the original ball, we get:

V_resulting_solid = V_original - V_hole

                 = 4188.8 - 523.6

                 = 4665.2 cubic units.

Rounding to one decimal place, the volume of the resulting solid is approximately 5243.7 cubic units.

By subtracting the volume of the drilled hole from the volume of the original ball, we obtained the volume of the resulting solid. The calculations were based on the formulas for the volume of a sphere and the subtraction of volumes.

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